Machine for operating on heels.



W. H.-SARGENT.

MACHINE FOR OPERATING ON HEELS.

APPLICATION FILED MAR.15,1911.

15*7y01 1 Patented Mar. 25, 1913 M75555: 1 /A/VE/VTUR WWW .j. eperat along .unne'cessarylto" handle directly the heel to be s-dpl atdi i f the di and"' reinovably 'heldl in vertical. undercut ways by a pin 26 shaped'to drop into and rest .wi thin agroove in the member 12; A uideway along which heel blanks may be a vanced to operative position in aline:

ment' with the pressing members is formed 1 bya' bottomplate28 and vertical side plates 30',and.,32.'. The guideway extends sufiiciently on one side of the machine toaccommodate severalheels, placed'side by side so gthat xjsuccesive; heels may bebrought into me'o-f' heels, thus rendering 1tpon. In initial position the face p V v plate is substantially flush with pe of the plate 32 which forms one side .6 efiui deway. A i/p. itronlng device is provided for en- "giea h heel blank prior to the prick Ifigerati'onand automatically centering it Q: elation to the awls. This device comlaiYshaped slide 34 arranged to reiffiecate vertically adjacent to the face of the die plate 10. The slide 34 is normally heldv in its elevated'position'by a spring. 36

actingthrough the cam lever 38 to the. end

I agf which the slide'is loosely attached'by a wesand'slot connection. A wedge cam 40 is 5 ialh'a'iiged to reciprocate simultaneously with @11 6 member l2-"and acts to swing the arm f 3.8, through a cain' roller carried thereby, to move the slide 34 downwardly for centeringthe heel blank. i

.In order to give the attaching nails an inclined direction in the heel so that the rear portion of the heel seatshall be securely l nailed, the effective face of the die plate 10 is 6e'versely" to the direction in which .the heel inclinedlongitudinally of the heel whereby the-awls' enter the tread face at an inclination thereto; The effective face 'of the fol- --lower plate 24 is similarly izn'clined' but where wedge-heels are to be pricked the inp clinati'on of the face of the follower plate 45 is greaterthanthatof the die plate 10, or,

faced the die plate.

Proje'ctingfrom' the surface .of the follower plate '24at a point below the center of a heel blank resting on the plate 28 is a spur 42. The sp a is formed from'a cy-' lindrical pin and h s-a chisel edge 43 formed by flattening the under side 44 and beveling the end of the pin on its upper side. The flattened side of'the pin faces in the directi'on in which the effective faces of the two.

work pressing members converge and this side, andalso' the chisel edge, extendtransblankwould tend :to'slip when engaged by the divergent faces of the pressing members. In operation a heel blank is pushed into ap'proxinlate alinement with the pressing members where it rests upon its breast sursitionto be pricked' by pushing in other words, its inclination to thedirec-f ti'on of. pressure is 'sharpenthan thatof the face as indicated by the dotted line position in 'Fig. 2. Upon applying power to. the machine the pressing member 12 is advanced toward the die plate 10, whereupon the sharpened edge 43 of the spur 42 engages the heel seat surface. of the heel blank .movement of the follower plate overcomes the resistance of the spring 20 so that the die plate 10 and heel blankare forced toward theawl block, the awls meanwhile entering the heel blank and forming holes for the attaching nails. Preliminarily to this operation, however, the spur 42 has penetrated into the heel blank, being embedded therein and positively preventing transverseslipping of the blank. The action of the spur 42 effectually prevents the inclined face oft-he follower plate from lifting the heel blank from the plate 28 at the initial engagement with the heel. Formerly when the rapidly moving inclined face of the follower plate came in contact with theheel'seat face of the blank it had a tendency to lift the blank and this tendency could not be overcome by causing the slide 34 to operate earlier in thecycle of operations as the unbalanced pressure on. the extreme end of the heel blank had a tendency to tilt the blank into a position in which its tread face was horizontal.

while'subjected'to pressure between the divergent faces of the pressing members. After the'follower plate has been moved to its limit it is retracted, the pricked hcel blank being held in engagement with the die "plateby the awls while the spur 42 is drawn out of the blank. The movement of the die plate 10 toward the right then occurs and The spur also positively prevents the heel blank from slipping upwardly the blank is stripped from the awls an'd pushed out of the machine when the succeeding blank is advanced to operative position.

is best. suited to the function it has 'to'perform. The extended sharpened edge which first engages the. surface of the heelblank ofiers maximum resistance to an upward movement of the blank before the spur has penetrated into it, while the flat surface 44 is'most effective for preventing movement of the blank transversely to it after the spur has become embedded therein.

f While the invention has been particularly described in connection with wedge heels it will be obviousthat its application is not It will be seen. that the shape of the spur limited to machines for ing, in combination, tools for operating" on any particular" shape or style of heel but is of a general nature.

Havingdescribed my invention, what I claim as new and desire to secure by Letters Patent of the'U'nited States is l. A machine for pricking heels having, in combination, oppositely disposed work pressing members, awls arranged to reciprocate through one of said members, a hold ing spur projecting from the other member, and means for relatively moving said members to engage a heel and force said spur into the heel, said awls operating thereafter to prick the} heel and hold the heel incontact with one of said pressing members after the pricking operation while the spur is drawn out of the heel by the movement of the other member.

2. A machine of the class described havoperating upon a wedge heel, and oppositely disposed heel pressing members for engaging and holding a heel preliminarily to the operation of said tools, said pressing members having non-parallel effective faces and one of said members having a spur rigidly set in its face and arranged to penetrate into the heel from the side opposite to the tools and prevent it from slipping relatively to said pressing members.

3. A machine of the class described having, in combination, tools for operating upon a Wedge heel, relatively movable pressing members comprising a die plate with tool passages and a follower, said members having their effective faces disposed at an inclination to their path of movement, means for moving said members to clamp a heel preliminarily to the operation of said tools, and a spur rigidly set in the face of the follower and arranged to penetrate into a heel when said members are moved to engage the heel.

4; A. machine of the class described having, in combination, tools for operating on a wedge heel, work pressing members having convergent faces, a spur projecting from the face of one pressing member and being-liattened on the side facing in the direction in which the faces of said members converge and provided with a transversely extending chisel edge, and means for moving said members to bring the chisel edge'into initial engagement with a heel and then force the spur into the heel preliminarily to the operation'of said tools,

5. A machine of the class described having, in combination, a supporting plate for a heel blank, a die plate and a cooperating pressing member relatively movable across the surface of the gage opposite faces of the heel blank and each having its work engaging face disposed obliquely with respect to the surface of the work supporting plate, awls arranged to work in the die plate, and a spur arranged to penetrate one of said faces of the blank prior to the operation of the awls.

6. A machine of the class described having, in'combination, a flat plate for supporting a heel blankresting on itsbreast surface, a die plate anda pressing member each having its work engagingface oblique to the plate, said pressing member having a spur set rigidly therein and being movable across the surface of the supporting plate to force the heel blank against the die plate first by the action of the spur and then by the direct action of the pressing member, and tools associated with the die plate and arranged to operate on the blank after'it gas been so engaged by the pressing mem- 7 A machine of the class described having, in combination, means for supporting a heel blank resting upon one of its plane surfaces, tools for operating on said heel blank, a die block for the tools having an inclined face and a member having a sharpened edge constructed and arranged to engage and tilt said blank into an inclined position against the die block preliminarily to the operation of said tools.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM H. SARGENT.

Witnesses:

l-lnnnnn'r \Y. Krxwav, :UKTLILTR L. RUssnLL.

supporting plate to en- 

